Temporary binder.



No. 735,879. PATENTED AUG. 11, 1903.. M. P. JACKSON. TEMPORARY BINDER,

APPLICATION FILED MAR. 20, 1903.

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7 UNITED STATES Patented August 11, 19031 MARK PIERRE JACKSON, OFLOUISVILLE, KENTUCKY.

TE-MPO R RY BIN 0 ER.

$PECIFICATION forming part Of Letters Patent N o. 735,879, dated. August11, 1903.

Application filed March 20, 1903. Serial No.148fl56. (No model.)

To aZZ whom it may concern:

Be it known that I, MARK PIERRE JACKSON, of Louisville, in thecounty ofJefferson and State of Kentucky, have invented certain new and usefulImprovements in Temporary Binders; and I hereby declare that thefollowing. is a full, clear, and exact description thereof,

reference being .had to-the accompanying drawings, which form part ofthis specification.

This invention is an improvedtemporary' binder or clip for securing anumber of loose separable sheets together in convenient book form andholding them so; and the object of the invention is to provide a binderin which leaves or sheets can be readily placed, removed, or changed, asin a file, said binder being provided with a double-actingspringfastening which in one position holds the binder securely closedand looks it, in another position will hold it open, and in anintermediate position will be inert, holding the binder partly opened, so thatleaves can be transferred from one side to the other, as in a file.

The device, in brief, comprises two metal clips or backing-pieceslongitudinally hinged and respectively provided with impaling posts orfingers which may telescope, overlap, or

slide past each other, or alternate, as common in various kinds of filesand binders, and a double-acting spring locking-plate in constructionconnected with said backing-pieces, as hereinafter more fully describedwith reference to the accompanying drawings, in which- Figure 1 is aView of the'binde'r in closed position; Fig. 2, a view thereof in openposi-' so that in closed position the binder is U- shaped incross-section and will clasp the edges of leaves or sheets insertedbetween the pieces A B, as indicated in the drawings.

may be of any desired kind and arranged in any desired way, providedthey will interlock, so as to hold the sheets in place when the bin deris closed. As shown, the posts are of the telescoping variety and arecurved on arcs constrict myself to telescopic impaling-po'sts.

A double acting and locking spring is attached to pieces A B,prefera'bly'at the inner side of and between them. This spring, as

centric-with the hinges C; but I do not reshown, has its bodyE of anapproximately U shape, with its ends e deflected outward in oppositedirections and nearly at right angles to its body portion. The ends eare loosely confined in eyes or loops 1) on piece B, while the c'enterofthe body is attached by an eye or bail fto a plate or button F, which ison the outer side of piece A, bail f passing through a short transverseslot a in the piece A, as shown.

By moving plate F to the forward end of slot at when the binder isclosed the spring is put under utmost tension by reason of theelongation of its loop due to the increased sep aration of the points ofattachment of the spring at l) f to the pieces A B,'and in this positionof parts, as indicated in Fig. 3, the binder will be closed and lockedor held tightly closed by the spring. The plate F may be provided withnotches f engaging protuberanoes a on piece A beside slot a, so astoretain the plate in said locking position; but I do not restrict myselfto this particular retaining means, as many others could be substitutedtherefor. The spring E thus holds and locks the binder closed.

When it is desired to open the binder, plate F is moved back to theposition shown in Fig. 4, which relaxes the spring tension and willallow the binder to be opened with decreasing resistance by the spring.When the 5 binder is half-open, as in Fig. 5, the upper end of thespring at point f, the hinge C, and the points I) are in alinement, andthe point f, being on dead-center,ren ders the spring ineffective tomove the parts AB. In this position of [00 parts the leaves or sheetscan be readily shifted onto either set of impaling-posts withoutdisengaging them. On further opening of the binder the point f movesinward past the dead-center and allows the spring to pull points f bnearer each other, thereby throwing the binder fully open, as indicatedin Fig. 6, in which position the leaves or sheets may be taken from orplaced on the impaling-posts at will. The extremities of the spring maybe bent, as at e, to prevent their being pulled through or from theloops 1).

The operation of the binder will be clear from the foregoing, and itwill be seen that its principal novelty is in the provision andarrangement of a double acting and locking spring and devices adapted tohold the binder either open or closed, and to lock it when closed, and Ido not restrict myself to the specific form or dimensions of parts shownin the drawings.

Having thus described my invention, I claim 1. In a temporary binder thecombination of the opposite longitudinally-hinged backing-piecesprovided with impaling-posts, with a spring, adapted to hold the bindereither open or closed, and means for shifting the spring when the binderis closed so as to lock the binder, substantially as specified.

2. In a temporary hinder the combination of opposite backing-piecesconnected 'by a longitudinal hinge, and provided with interlockingimpaling devices, with a lockingspring adapted to hold the binder openor closed, and a transversely-movable plate connecting said spring toone piece, whereby the spring may be shifted into position to lock theplates when the binder is closed, substan-

